With 451 of 481 precincts reporting, Coffelt and Waller each received more than 54 percent of the vote in their respective races, according to unofficial results.

The tally did not include more than 83,000 early ballots cast by the county's 405,000 registered voters, election officials said. There also were an estimated 15,000 absentee ballots cast that were not included in the unofficial election results. More than 187,000 voters cast ballots at the polls Tuesday, they said.

Dr. Richard Keller, a Democrat, moved closer to a second term as coroner with 54 percent, leading GOP challenger and emergency room physician Michael Oster, unofficial results show.

More than 65 percent of voters also appeared to approve a Forest Preserve District bond issue for $185 million.

In the state's attorney's contest, Waller cited his focus on sexual predators, child sex offenders and identity theft as key accomplishments during his 18-year tenure. Democratic challenger Michael Jacobs, a prosecutor, said the office needed a change at the top.